SUNGDO Engineering's stake in Systems Technology edges down to 27.67% amid share cancellation and pledge release, boosting shareholder value


  • SUNGDO Engineering's stake in Systems Technology decreased by 92,000 shares to 4,291,523 shares (27.67%). The change was driven by special relation Lee Woo-seok's exercise of stock options (100,000 shares cancelled), open market purchase (8,000 shares), and the company's share cancellation (total 322,953 shares), adjusting the ratio.
  • All pledge agreements held by the filer and special relations (700,000 shares by SUNGDO and 1,000,000 shares by Seo In-soo) were terminated, reducing financial risk.
  • The issuer cancelled approximately 322,953 shares on December 29, 2025, reducing total outstanding shares to 15,507,047, a positive factor for existing shareholders.
  • The filer stated no current intention to exercise management influence but will make relevant decisions as the largest shareholder if necessary.
  • [AI Comprehensive Analysis]This disclosure does not involve changes in management control or large-scale capital raising. It combines minor stake fluctuations, pledge termination, and share cancellation. The share cancellation is positive but the magnitude is small, making this a neutral event overall.

KOSDAQ Filing Information


  • Filing: Report on Large Shareholding (General)
  • Company: Systems Technology (039440)
  • Submission: SUNGDO Engineering & Construction
  • Receipt: 05-28-2026